For some regions, SmartTech TV Downloads provides a model search for firmware packages. USB Installation Steps
Copy the extracted .bin or .img file directly to the root folder (not inside any folder) of the USB drive. Insert and Boot: Turn off the TV. Insert the USB drive into the TV's USB port. Download ONIDA 55UIB Software part04 rar
If your TV is still functional and connected to the internet, you can check for official updates without manual files: For some regions, SmartTech TV Downloads provides a
While direct official download links for specific archived parts are rarely hosted on the main manufacturer site, they are commonly found on specialized TV repair forums and technical YouTube channels: Insert the USB drive into the TV's USB port
Wait for the "Software Upgrading" or "Do not turn off" progress bar to appear.
Press and hold the on the TV (not the remote) and then turn on the main power switch.